Trincomalee: region in Sri Lanka
What exactly constitutes the spatial extent of the city? For these aggregations, we used the Global Human Settlement Layer Urban Center Database (GHS-UCDB) to define the boundaries of the city. These cities -- or urban centers -- cover areas that are densely populated and built-up, and so may extend beyond the spatial borders of these cities that we may be familiar with. The GHS area is shaded in blue.
View Trincomalee, Sri Lanka on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Trincomalee as of 2014, the overall level of street-network sprawl is 4.19, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 3.74, -0.25, 3.49 and 5.41. The disconnectivity of new streets constructed in Trincomalee fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Trincomalee spans a total of 680 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 3.74, which is highly disconnected.
Effect on the aggregate network: New construction in each period adds to the total stock of streets, but does not change streets that have already been built. Therefore, it has a limited effect on the street network as a whole. The SNDis of the aggregate street network in the respective time periods are 3.74, 3.73, 3.75 and 4.19. The SNDi of the aggregate street network in fell at first, but Trincomalee has worsened in disconnectivity since 1990.
The level of street-network sprawl in new development in Trincomalee was at its lowest in 1976-1990. To get a sense of how street development has changed in Trincomalee, we can consider two of its most populous cities: Trincomalee and Tamaraivillu. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Trincomalee followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Tamaraivillu followed a zig-zag trend with an overall increase.
How do development practices in Trincomalee fare in comparison to others in Sri Lanka? Most recently in 2001-2014, street construction in Trincomalee was the 8th-most disconnected out of the 13 regions in Sri Lanka. Its position in the ranks since 1975 has fallen; relative to other regions in Sri Lanka, street construction in Trincomalee has become more connected. Trincomalee ranked 5th in 1975, 12th in 1976-1990, 11th in 1991-2000 and 8th in 2001-2014.
As of 2014, the city with the most disconnected street network in Trincomalee is Trincomalee with an SNDi of 4.61, which is highly disconnected. Conversely, the most connected city is Tamaraivillu with an SNDi of 2.91, which is in the 40th to 60th percentile of disconnectedness. See trends for these cities: Tamaraivillu, Trincomalee
The level of street-network sprawl in the aggregate network in Trincomalee was at its lowest in 1976-1990. To get a sense of how the aggregate street network has changed in Trincomalee, we can consider two of its most populous cities: Trincomalee and Tamaraivillu. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Trincomalee followed a zig-zag trend with an overall increase. The level of street-network sprawl in the aggregate network in Tamaraivillu rose steadily.
To date, Trincomalee is the 9th-most disconnected out of the 13 regions in Sri Lanka. Its position in the ranks since 1975 has fallen; relative to other regions in Sri Lanka, the street network in Trincomalee has become more connected. Trincomalee ranked 5th in 1975, 10th in 1976-1990, 11th in 1991-2000 and 9th in 2001-2014.